Sanity Check

Rails
1

Maaaaaaaaaaaaajor sanity check needed.
I wrote a simple little plugin, and it wouldn’t load. I put some
comments
in it’s init.rb, and it didn’t even spit those out. So, I dug into the
initializer.rb (/vendor/rails/railties/lib/initializer.rb) to see wtf is
going on, and found the problem… but… can’t explain it. Here is the
code in question:

    lib_path  = File.join(directory, 'lib')
    init_path = File.join(directory, 'init.rb')
    has_lib   = File.directory?(lib_path)
    #raise LoadError, "Dude, this path is ok: " + has_lib#    =>

public/…/config/…/vendor/plugins/my_plugin/init.rb
has_init = File.file?(init_path)
#raise LoadError, “WTF !..” + has_init.to_s# =>
False !!!

I’ve loaded the same situation up in IRB, and it works fine. Why is
File.file?(init_path) returning false !?
Permissions are fine, the path is fine:
public/…/config/…/vendor/plugins/my_plugin/init.rb.

I’m losing my mind.

2

What version of rails are you running? Plugins don’t work before
0.14releases…

3

I’m running Edge.

4

So, I was able to hack this to work when I “hardcode” my absolute path
in
here… however, that is obviously the biggest hack ever.

Problem is, the path it’s getting from #{RAILS_ROOT} is a relative path,
and
when it’s being applied within the context of the initializer.rb
directory
(which is actually in the /vendor/ directory), it’s not a valid URL
anymore.

So, it looks as if you’re running Edge, and want plugins to work, your
out
of luck.
Am I crazy ?

5

Dylan… don’t know if this will help you here or not, but I was
commenting on the strange
relative path that RAILS_ROOT produces and Kris L. pointed out that
one can do
“File.expand_path(RAILS_ROOT)” to get the full path.

b

6

Thanks a bunch Ben. I just did a little test, and think I may have a
possible bug in hand… but not sure.
Here is what I did:

==============================

  1. rails -v (rails 1.0.0)
  2. rails test (in my home dir, now ive got
    /home/dylan/test/)
  3. create plugin:
    (/home/dylan/test/vendor/plugins/custom/lib/custom.rb and

/home/dylan/test/vendor/plugins/custom/lib/init.rb)
4) rake freeze_edge

  1. put debug in:
    (/home/dylan/test/vendor/rails/railties/lib/initializer.rb … line
    311:
    “raise LoadError, init_path”)
  2. output:
    “public/…/config/…/vendor/plugins/custom/init.rb”
  3. put debug in:
    (/home/dylan/test/vendor/rails/railties/lib/initializer.rb … line
    312:
    “raise LoadError, has_init.to_s”)
  4. output: “false”
    ==============================

So, normal 1.0.0 install, froze edge, threw a valid plugin in
/vendor/plugins, and initializer.rb can’t pick it up due to an invalid
URL.

Do I have a point here, or am I doing something wrong ?